Rods x and y of equal..... | JEE Main 2026 22 Jan Shift 1

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JEE MAIN 2026

22-01-2026 S1

Question

Rods $x$ and $y$ of equal dimensions but of different materials are joined as shown in figure. Temperatures of end points $A$ and $F$ are maintained at $100^{\circ} \mathrm{C}$ and $40^{\circ} \mathrm{C}$ respectively. Given the thermal conductivity of $\operatorname{rod} x$ is three times of that of $\operatorname{rod} y$, the temperature at junction points $B$ and $E$ are (close to):

Select the correct option:

A

89 °C and 73 °C respectively

B

80 °C and 60 °C respectively

C

80 °C and 70 °C respectively

D

60 °C and 45 °C respectively

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Solution

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